用量角器量出三角尺上每个角的度数.∠1= ∠2= ∠3= ∠4= ∠5= ∠6= .
14÷ =0.35= :60= %= : .
÷ == (填小数)== ÷24.
=== ÷ = (小数)
3÷5== ÷30=9: = 填小数.
= :8=== 填小数.